HIV vaccine failure due to induction of immune suppressors?

Induction of Immune Response in Animal Model Using Recombinant Anti-NDV Vaccine

Background: Newcastle disease is a major avian disease that causes enormous economic loss in poultry industry. There have been a number of reports on the suitability of plant-based recombinant vaccine against this disease. Fusion (F) and hemagglutinin-neuraminidase (HN) epitopes of the Newcastle disease virus (NDV) represent the major immunogenic sites for development of recomb...

An HIV-1 Mini Vaccine Induced Long-lived Cellular and Humoral Immune Responses

Memory formation is the most important aspect of a vaccine which can guarantee long-lasting immunity and protection. The main aim of the present study was to evaluate the memory immune responses after immunization with a mini vaccine. Mice were immunized with human immunodeficiency virus-1 P24-Nef fusion peptide and then cellular and humoral immune responses were evaluated. In order to determin...

Th1 Immune Response Induction by Biogenic Selenium Nanoparticles in Mice with Breast Cancer: Preliminary Vaccine Model

Background: Tumor associated antigens can be viably used to enhance host immune response. Objectives: The immunomodulatory effect of biogenic selenium nanoparticles (SeNPs) was compared between treated and untreated mice with crude antigens of 4T1 cells. Materials and Methods: Female inbred BALB/c mice (60) were injected by cancinogenic 4T1 cells causing breast cancer. After 10 days, all tumor ...

Fulminant hepatic failure due to metastatic choroidal melanoma

Pneumonia due to Salmonella typhimuriumin an HIV-Infected Patient

HIV-related Immunosuppression significantly increases the risk of acquiring opportunistic infections. This report describes a 69-year-old man, referred to hospital with decreased consciousness and productive cough. This man was a known case of human immunodeficiency virus positive. The sputum of this patient was positive for Salmonella typhimurium. Pulmonary auscultation signaled brief...